I'm unable to change the innerHTML of a javascript element, but i can change the id so i'm not sure why it wont work.

i get OLE error 800A0258.

Any help will be great, thanks.

===========================

"innerHTML of a javascript element" ...uhm what?

first: all things you can access thru TWebBrowser is called DOM and im sure you want to set the property "innerHTML" of an HTML-(container)-tag. have you ensured that you accessed the object correctly? try your assigning out of delphi within a javascript block and see if that works. have you also tried "innerText" instead?

==================================

I cant remember the error.

this is how i dot it now

procedure DoUpdate;
var
  document: IHTMLDocument2;
  FE: IHTMLElement;
  Res:TResourceStream;
  Str:TStringStream;
  Tmp:String;
begin
  document:= frmMain.List.Document as IHTMLDocument2;
  FE:= document.scripts.item(0, '') as IHTMLElement;
  if (FE <> nil) and (FE.id <> JSv) then begin
    Res:= TResourceStream.CreateFromID(hInstance, 1, 'TEXT');
    Str:= TStringStream.Create('');
    Res.Seek(0, 0);
    Str.CopyFrom(Res, Res.Size);
    Tmp:= '<script language=javascript id='+JSv+'>';
    Tmp:= Copy(Str.DataString, Pos(Tmp, LowerCase(Str.DataString)), Pos('</script>', LowerCase(Str.DataString))-Pos(Tmp, LowerCase(Str.DataString))+9);
    Str.Free;
    Res.Free;
    FE.outerHTML:= '<br id=del>'+Tmp;
    ((frmMain.List.Document as IHTMLDocument2).parentWindow).execScript('document.body.removeChild(document.getElementById("del"));', 'JavaScript');
    Tmp:= '';
  end;
end;

JSv is the Script version.

=================================================

innerHTML does not apply to all elements.

For details see:

http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/properties/innerhtml.asp

"The property is read/write for all objects except the following, for which it is read-only: COL, COLGROUP, FRAMESET, HTML, STYLE, TABLE, TBODY, TFOOT, THEAD, TITLE, TR."

and

"By definition, elements that do not have both an opening and closing tag cannot have an innerHTML property."

For example when you try to set innerHTML for an <IMG> (which has noc closing tag) the above ole-error may occur.

Changing an Elements innerHTML in TWebBrowser的更多相关文章

  1. innerHTML的性能问题

    看到一遍文章When innerHTML isn’t Fast Enough,反应了innerHTML在操作量大了以后的性能下降的问题. 并且给出了一个replaceHTML的函数 function  ...

  2. 一个酷炫的,基于HTML5,Jquery和Css的全屏焦点图特效,兼容各种浏览器

    基于HTML5和CSS的焦点图特效,梅花图案的背景很有中国特色,而且还会动哦,效果超炫,推荐下载! 演示图 html代码 <!DOCTYPE html PUBLIC "-//W3C// ...

  3. im2uint8函数分析

    环境:Win7 64位 + Matlab R2010a 本次分析的函数为im2uint8,这个函数在图像处理中要用到,主要把图像数据类转换到uint8 uint8函数有效的输入的图像数据类为:logi ...

  4. CSS3入门

    CSS3 w3cschools css3  MDN英文  MDN中文 CSS3 is the latest evolution of the Cascading Style Sheets langua ...

  5. WebSocket实战

    前言 互联网发展到现在,早已超越了原始的初衷,人类从来没有像现在这样依赖过他:也正是这种依赖,促进了互联网技术的飞速发展.而终端设备的创新与发展,更加速了互联网的进化: HTTP/1.1规范发布于19 ...

  6. Golang 学习资料

    资料 1.How to Write Go Code https://golang.org/doc/code.html 2.A Tour of Go https://tour.golang.org/li ...

  7. html lesson one

    Review Congratulations on completing the first lesson of HTML & CSS! You are well on your way to ...

  8. JanusGraph的schema及数据建模

    每个JanusGraph都有一个schema,该schema由edge labels, property keys和vertex labels组成.JanusGraph的schema可以显式或隐式创建 ...

  9. Codeforces 316C2 棋盘模型

    Let's move from initial matrix to the bipartite graph. The matrix elements (i, j) for which i + j ar ...

随机推荐

  1. ARM与X86架构的对决[整编]

    CISC(复杂指令集计算机)和RISC(精简指令集计算机)是当前CPU的两种架构.它们的区别在于不同的CPU设计理念和方法.早期的CPU全部是CISC架构,它的设计目的是  CISC要用最少的机器语言 ...

  2. C语言 百炼成钢26

    /* 题目62: 有一下特征字符串"eerrrrqqAB33333ABa333333ABjsfdsfdsa" 编写一个业务函数, 实现功能1:实现按照子串"AB" ...

  3. jquery 改变checkbox的值

    似乎没什么用... <script> $(document).ready(function(){ $("#comment").change(function(){ va ...

  4. linux less使用方法

    less 工具也是对文件或其它输出进行分页显示的工具,应该说是linux正统查看文件内容的工具,功能极其强大.less 的用法比起 more 更加的有弹性.在 more 的时候,我们并没有办法向前面翻 ...

  5. redhat ent6.5使用centos yum

    转载自:http://blog.csdn.net/zhngjan/article/details/20843465 搜狐镜像库:mirrors.sohu.com 163镜像库:mirrors.163. ...

  6. poj 3281(网络流+拆点)

    题目链接:http://poj.org/problem?id=3281 思路:设一个超级源点和一个超级汇点,源点与食物相连,饮料与汇点相连,然后就是对牛进行拆点,一边喜欢的食物相连,一边与喜欢的饮料相 ...

  7. JAVA-各种类型之间转换 parse() 与valueOf()

    类型互转 1.各种类型转String 2.String转Bytes 3.数组转List 4.进制转换 5. parse 在 SimpleDateFormat 中是转换为Date类,其它的一些包装类都是 ...

  8. POJO应用框架:Spring与EJB3.0的比较

    英文原文地址:http://www.onjava.com/pub/a/onjava/2005/06/29/spring-ejb3.html中文地址:http://www.matrix.org.cn/r ...

  9. mysql数据库导入到oracle数据库

    首先,写一个cmd脚本 xx.cmd sqlldr username/password control=xx.ctl errors=10000000 direct=y 再写一个bat脚本xx.bat ...

  10. Linux的.a、.so和.o文件 windows下obj,lib,dll,exe的关系

    Linux的.a..so和.o文件 - chlele0105的专栏 - CSDN博客 https://blog.csdn.net/chlele0105/article/details/23691147 ...